Monitoring system of photovoltaic power generation unit

Abstract

The invention discloses a monitoring system of a photovoltaic power generation unit, and relates to the technical field of photovoltaic power generation. The monitoring system of the photovoltaic power generation unit comprises a signal collector, a signal processing module, a control system, a communication module and a server, and is characterized in that a signal collector is arranged on a transformer, the output end of the signal collector is connected with the input end of the signal processing module, the output end of the signal processing module is connected with the input end of the control system, and the output end of the control system is connected with the input end of the server through the communication module. According to the monitoring system, a box-type transformer monitoring unit, a communication management module and a photovoltaic conversion module are combined together in a three-to-one mode, the protecting function of an integral transformer is achieved, and meanwhile communication and management are carried out to other devices of photovoltaic display, such as an inverter and a combiner box so as to reduce the number of devices of a photovoltaic power station, reduce the maintenance difficulty of on-site working staff, and improve the reliability of the operating of a photovoltaic power field.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a monitoring system for photovoltaic power generation units. Background technique [0002] The rapid development of my country's photovoltaic industry has played a positive role in increasing my country's energy supply, adjusting energy structure and protecting the ecological environment. Due to the influence of special meteorological factors, photovoltaic projects are mostly located in places with relatively harsh natural conditions such as the northwest and coastal areas, and power generation The distribution of the stations is relatively scattered, and the office management site is far away from the equipment site, generally at least a few kilometers away. The long-distance office has caused inconvenience to equipment management and operation. [0003] In the photovoltaic field, each photovoltaic array will be equipped with a box-type transformer, two inve...

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Problems solved by technology

[0002] The rapid development of my country's photovoltaic industry has played a positive role in increasing my country's energy supply, adjusting energy structure and protecting the ecological environment. Due to the influence of special meteorological factors, photovoltaic projects are mostly located in places with relatively harsh natural conditions such as the northwest and coastal areas, and power generation The distribution of the stations is relatively scattered, and the place for office management is far away from the equipment site, generally at least a few kilometers away. The long-distance office causes inconvenience to equipment management and operation

[0003] In the photovoltaic field, each photovoltaic array will be equipped with a box-type transformer, two inverters and multiple combiner boxes, and there will be many factors that cause failures in the operation of the box-type transformer equipped with the photovoltaic array, so in order to improve For the stability and safety of the box-type transformer, each box-type transformer will be equipped with an intelligent monitoring unit to monitor and protect these factors that may cause failures. Due to the lack of integration with the centralized control system of the box-type transformer, and The function of each instrument is relatively simple, especially the mutual communication between each device is relatively cumbersome, which directly affects the reliability of the operation of the entire box-type transformer system and increases the difficulty of real-time monitoring and management of the staff

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